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<head>
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  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>学生</title>
  <!-- 一进来，结构都不管，先验证有没有令牌，有令牌才考虑渲染 -->
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  <link rel="stylesheet" href="./css/common.css" />
  <link rel="stylesheet" href="./css/student.css" />
</head>

<body class="application application-offset">
  <div class="container-fluid container-application">
    <div class="sidenav show" id="sidenav-main">
      <!-- Sidenav header -->
      <div class="sidenav-header d-flex align-items-center">
        <a class="navbar-brand" href="./index.html">
          <span class="logo">·ITCAST·</span>
        </a>
      </div>
      <!-- User mini profile -->
      <div class="sidenav-user d-flex flex-column align-items-center justify-content-between text-center">
        <!-- Avatar -->
        <div>
          <a href="#" class="avatar rounded-circle avatar-xl">
            <img alt="Image placeholder" src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg"
              class="" />
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          <div class="mt-5">
            <h5 class="mb-0 text-white">黑马前端</h5>
            <span class="d-block text-sm text-white opacity-8 mb-3">数据可视化</span>
            <a href="javascript:;" class="btn btn-sm btn-white btn-icon rounded-pill shadow hover-translate-y-n3">
              <span class="btn-inner--text">学前端来黑马</span>
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      <!-- Application nav -->
      <div class="nav-application clearfix">
        <a href="./index.html" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-house bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">首页</span>
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        <a href="./student.html" class="btn btn-square text-sm active">
          <span class="btn-inner--icon d-block"><i class="bi bi-people bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">学生</span>
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        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-columns bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">排版</span>
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        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-files bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">资料</span>
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        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-receipt bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">就业</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-gear bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">设置</span>
        </a>
      </div>
      <!-- Misc area -->
      <div class="card bg-gradient-warning">
        <div class="card-body">
          <h5 class="text-white">哈喽, 朋友!</h5>
          <p class="text-white mb-4">为什么不现在开始学习前端，创造一些令人惊叹的东西呢？</p>
          <a href="http://itcast.cn" class="btn btn-sm btn-block btn-white rounded-pill" target="_blank">Get started</a>
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    <div class="main-content position-relative">
      <nav class="navbar navbar-main navbar-expand-lg navbar-dark navbar-border" id="navbar-main">
        <div class="container-fluid">
          <!-- Navbar nav -->
          <div class="collapse navbar-collapse navbar-collapse-fade" id="navbar-main-collapse">
            <ul class="navbar-nav align-items-lg-center">
              <!-- Home  -->
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 首页 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 传智教育 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 黑马程序员 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 文档 </a>
              </li>
            </ul>
            <!-- Right menu -->
            <ul class="navbar-nav ml-lg-auto align-items-center d-none d-lg-flex">
              <li class="nav-item dropdown dropdown-animate">
                <a class="nav-link pr-lg-0" href=".dropdown-menu" role="button" data-toggle="dropdown"
                  aria-haspopup="true" aria-expanded="false">
                  <div class="media media-pill align-items-center">
                    <span class="avatar rounded-circle">
                      <img alt="Image placeholder"
                        src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg" />
                    </span>
                    <div class="ml-2 d-none d-lg-block">
                      <span class="mb-0 text-sm font-weight-bold">Admin</span>
                    </div>
                  </div>
                </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" id="logout" href="javascript:;"> 退出 </a>
              </li>
            </ul>
          </div>
        </div>
      </nav>
      <div class="page-content">
        <div class="page-title mb-3">
          <div class="row justify-content-between align-items-center">
            <div class="col-md-6 mb-3 mb-md-0">
              <h5 class="h3 font-weight-400 mb-0 text-white">Students</h5>
              <span class="text-sm text-white opacity-8">一共有 <b class="total">0</b> 位学员</span>
            </div>
            <div class="col-md-6 d-flex align-items-center justify-content-between justify-content-md-end">
              <a id="openModal" href="javascript:;" class="btn btn-sm btn-white btn-icon-only rounded-circle ml-4">
                <span class="btn-inner--icon"><i class="bi bi-plus bi-2x"></i></span>
              </a>
            </div>
          </div>
        </div>
        <div class="row">
          <div class="col">
            <div class="card card-fluid">
              <div class="table-responsive" style="min-height: 1000px">
                <table class="table align-items-center">
                  <thead>
                    <tr>
                      <th>姓名</th>
                      <th>年龄</th>
                      <th>性别</th>
                      <th>组号</th>
                      <th>期望薪资</th>
                      <th>就业薪资</th>
                      <th>籍贯</th>
                      <th>操作</th>
                    </tr>
                  </thead>
                  <tbody class="list">
                    <tr>
                      <td>张杰</td>
                      <td>20</td>
                      <td>男</td>
                      <td>第2组</td>
                      <td>10000</td>
                      <td>13000</td>
                      <td>北京北京市东城区</td>
                      <td>
                        <a href="javascript:;" class="text-success mr-3"><i class="bi bi-pen"></i></a>
                        <a href="javascript:;" class="text-danger"><i class="bi bi-trash"></i></a>
                      </td>
                    </tr>
                  </tbody>
                </table>
              </div>
            </div>
          </div>
        </div>
        <!-- footer -->
        <div class="footer pt-5 pb-4 footer-light" id="footer-main">
          <div class="row text-center text-sm-left align-items-sm-center">
            <div class="col-sm-6">
              <p class="text-sm mb-0">© 2022 <a href="https://itcast.cn" class="h6 text-sm" target="_blank">前端学科</a>.
                All rights reserved.</p>
            </div>
            <div class="col-sm-6 mb-md-0">
              <ul class="nav justify-content-center justify-content-md-end">
                <li class="nav-item">
                  <a class="nav-link" href="#">Support</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link" href="#">Terms</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pr-0" href="#">Privacy</a>
                </li>
              </ul>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
  <!-- add Modal -->
  <div class="modal fade" id="modal">
    <div class="modal-dialog modal-lg">
      <div class="modal-content">
        <div class="modal-header">
          <h5 class="modal-title">某标题</h5>
          <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
        </div>
        <div class="modal-body">
          <form id="form" class="g-3 row" autocomplete="off" novalidate>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">姓名：</label>
                <input type="text" name="name" class="form-control" placeholder="请输入姓名" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">性别：</label>
                <div class="input">
                  <div class="form-check d-inline-block">
                    <input value="0" checked id="cb01" class="form-check-input" type="radio" name="gender" />
                    <label for="cb01" class="form-check-label">男</label>
                  </div>
                  <div class="form-check d-inline-block">
                    <input value="1" id="cb02" class="form-check-input" type="radio" name="gender" />
                    <label for="cb02" class="form-check-label">女</label>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">年龄：</label>
                <input type="text" name="age" class="form-control" placeholder="请输入年龄" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">组号：</label>
                <input type="text" name="group" class="form-control" placeholder="请输入1-8组号" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">期望薪资：</label>
                <input type="text" name="hope_salary" class="form-control" placeholder="请输入期望薪资" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">就业薪资：</label>
                <input type="text" name="salary" class="form-control" placeholder="请输入就业薪资" />
              </div>
            </div>
            <div class="col-sm-12">
              <div class="form-group">
                <label class="input-group-label">籍贯：</label>
                <div class="input pl-0">
                  <select class="form-select custom-select" name="province">
                    <option value="">--省份--</option>
                  </select>
                  <select class="form-select custom-select" name="city">
                    <option value="">--城市--</option>
                  </select>
                  <select class="form-select custom-select" name="area">
                    <option value="">--地区--</option>
                  </select>
                </div>
              </div>
            </div>
          </form>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
          <button type="button" class="btn btn-blue" id="submit">确认</button>
        </div>
      </div>
    </div>
  </div>
  <script src="./bootstrap/bootstrap.min.js"></script>
  <script src="./lib/axios.js"></script>
  <script src="./lib/form-serialize.js"></script>
  <script src="./js/common.js"></script>
  <script>
    const modalBox = document.querySelector('#modal')
    const modal = new bootstrap.Modal(modalBox)
    const form = document.querySelector('#form')
    const title = modalBox.querySelector('.modal-title')
    const pSelect = document.querySelector('[name=province]')
    const cSelect = document.querySelector('[name=city]')
    const aSelect = document.querySelector('[name=area]')

    // 渲染功能
    async function renderList() {
      const { data } = await axios.get('/students')
      // console.log(data)
      const htmlStr = data.map(item => {
        return `
        <tr>
          <td>${item.name}</td>
          <td>${item.age}</td>
          <td>${item.gender === 0 ? '男' : '女'}</td>
          <td>第${item.group}组</td>
          <td>${item.hope_salary}</td>
          <td>${item.salary}</td>
          <td>${item.province} ${item.city} ${item.area}</td>
          <td>
            <a href="javascript:;" class="text-success mr-3"><i data-id="${item.id}" class="bi bi-pen"></i></a>
            <a href="javascript:;" class="text-danger"><i data-id="${item.id}" class="bi bi-trash"></i></a>
          </td>
        </tr>
        `
      }).join('')
      document.querySelector('.list').innerHTML = htmlStr
      document.querySelector('.total').innerHTML = data.length
    }
    renderList()

    // 删除或编辑功能功能
    document.querySelector('.list').addEventListener('click', async function (e) {
      // 判断当前被点击的i按钮，有没有bi-trash的类，
      if (e.target.classList.contains('bi-trash')) {
        // 获取要删除的用户 id
        const { id } = e.target.dataset
        // 删除操作，发送删除请求，成功重新渲染
        try {
          const res = await axios.delete(`/students/${id}`)
          console.log(res)
          renderList()
        } catch (e) {
          alert('删除失败')
          console.dir(e)
        }
      }

      // 点击的是编辑按钮
      if (e.target.classList.contains('bi-pen')) {
        // 将电机的编辑按钮的id，存到对话框上 （对话框是唯一的，要改谁就存谁的id）
        modalBox.dataset.id = e.target.dataset.id
        title.innerHTML = '修改学员'

        // 发送请求获取数据
        const { data: student } = await axios.get(`/students/${modalBox.dataset.id}`)
        console.log(student)

        // 遍历表单完成回显,一次性拿到了10个有name属性的表单元素
        const fields = Array.from(document.querySelectorAll('#form [name]'))  // 将伪数组转换为真数组
        // console.log(fields)
        fields.forEach(item => {
          if (item.name === 'gender') {
            // 单选框要单独处理，两个单选框，不能都选中
            // 看input的value值 和 student.gender 是否相等，相等才选中
            if (+item.value === student.gender) {
              item.checked = true
            }
          } else {
            // item 就是 每个有name的表单元素
            item.value = student[item.name]
          }
        })

        // 根据student.province,要获取所有的城市，渲染城市，设置value,设置选中的是的哪个市区
        const { data: city } = await axios.get('/api/city', {
          params: {
            pname: pSelect.value
          }
        })
        // console.log(city)
        const chtml = city.map(item => `<option value="${item}">${item}</option>`).join('')
        cSelect.innerHTML = `<option value="">--城市--</option>${chtml}`
        cSelect.value = student.city

        // 根据student.city 要获取所有的地区，渲染地区，设置选中的是哪个市区
        const { data: area } = await axios.get('/api/area', {
          params: {
            pname: pSelect.value,
            cname: cSelect.value
          }
        })
        // console.log(city)
        const ahtml = area.map(item => `<option value="${item}">${item}</option>`).join('')
        aSelect.innerHTML = `<option value="">--地区--</option>${ahtml}`
        aSelect.value = student.area

        // 回显完成，显示弹框
        modal.show()

      }

    })


    // 实现弹框的显示
    // modal.show()
    document.querySelector('#openModal').addEventListener('click', function () {
      // 重置表单
      form.reset()
      // 设置标题
      title.innerHTML = '添加学员'
      // 添加一个标识，将来区分到底进行的是添加还是修改
      // 如果是添加，记录一个字符串 "add"
      // 如果是修改，记录一个修改的id
      modalBox.dataset.id = 'add'

      // 显示弹框
      modal.show()
    })



    // 初始化省市区联动的功能

    const initCity = async () => {
      // 动态渲染省份
      const { data: province } = await axios.get('/api/province')
      // console.log(province)
      const phtml = province.map(item => `<option value="${item}">${item}</option>`).join('')
      pSelect.innerHTML = `<option value="">--省份--</option>${phtml}`

      // 2. 监听省份的选择
      pSelect.addEventListener('change', async function () {
        // 重置城市区域的下拉框
        cSelect.value = ''
        aSelect.value = ''



        // 动态渲染城市
        const { data: city } = await axios.get('/api/city', {
          params: {
            pname: pSelect.value
          }
        })
        // console.log(city)
        const chtml = city.map(item => `<option value="${item}">${item}</option>`).join('')
        cSelect.innerHTML = `<option value="">--城市--</option>${chtml}`
      })

      // 3. 监听城市的选择
      cSelect.addEventListener('change', async function () {
        // 动态渲染城市
        const { data: area } = await axios.get('/api/area', {
          params: {
            pname: pSelect.value,
            cname: cSelect.value
          }
        })
        // console.log(city)
        const ahtml = area.map(item => `<option value="${item}">${item}</option>`).join('')
        aSelect.innerHTML = `<option value="">--地区--</option>${ahtml}`
      })
    }
    initCity()

    const submitBtn = document.querySelector('#submit')
    submitBtn.addEventListener('click', async function () {
      const data = serialize(form, { hash: true })
      console.log(data)
      data.age = +data.age
      data.gender = +data.gender
      data.hope_salary = +data.hope_salary
      data.salary = +data.salary
      data.group = +data.group
      // 发送请求提交，做个判断
      // 判断是否是添加操作，如果是，发送添加请求
      if (modalBox.dataset.id === 'add') {
        // 添加操作
        try {
          await axios.post('/students', data)
          // console.log(res)
          renderList()  // 重新渲染页面
          modal.hide()  // 关闭弹框
        } catch (e) {
          console.dir(e)
          alert('添加失败')
        }
      } else {
        // 修改操作
        // console.log(modalBox.dataset.id, '修改操作')
        try {
          await axios.put(`/students/${modalBox.dataset.id}`, data)
          renderList()
          modal.hide()
        } catch (e) {
          // console.dir(e)
          alert('修改失败')
        }
      }
    })
  </script>
</body>

</html>